//The MIT License

//Copyright (c) 2010 Nick Darnell

//Permission is hereby granted, free of charge, to any person obtaining a copy
//of this software and associated documentation files (the "Software"), to deal
//in the Software without restriction, including without limitation the rights
//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//copies of the Software, and to permit persons to whom the Software is
//furnished to do so, subject to the following conditions:

//The above copyright notice and this permission notice shall be included in
//all copies or substantial portions of the Software.

//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
//THE SOFTWARE.

using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Collections.Generic;
using System.Text;

namespace Polymorph.Test
{
    public static class ForgeFactory
    {
        private static Dictionary<Type, Dictionary<string, ForgeLink>> m_Links;

        static ForgeFactory()
        {
            m_Links = new Dictionary<Type, Dictionary<string, ForgeLink>>();
        }

        public static ForgeLink GetLink(Type objectType, string memberName)
        {
            Dictionary<string, ForgeLink> memberTable;

            if (!m_Links.TryGetValue(objectType, out memberTable))
            {
                memberTable = new Dictionary<string, ForgeLink>();
                lock (m_Links)
                {
                    m_Links[objectType] = memberTable;
                }
            }

            ForgeLink link;

            if (memberTable.TryGetValue(memberName, out link))
                return link;

            link = Forger.GetLink(objectType, memberName);
            lock (m_Links)
            {
                memberTable[memberName] = link;
            }

            return link;
        }
    }
}
